Whilst WJ are well known and respected as one of the leading dewatering contractors in the UK, we have many other services within our oeuvre. We recently demonstrated one of these whilst undertaking in-tunnel probe drilling as part of the Thames Tideway works at the Dormay Street Shaft in Wandsworth.read more
2018 marks a milestone for WJ, as not only is it 37 years since our companies’ formation, but it also marked a rare gathering of our Board of Directors and Senior Managers from across our global operations, representing 23 nationalities from 8 international business regions, for our first International Week in leafy Hertfordshire during early September to mark the formation of WJ Group and the birth of WJ as a truly global brand for all your Water Management requirements!read more
On the 17th and 18th of September 2018, the British Geotechnical Association and Engineering Group of the Geological Society hosted the first major conference on Chalk in almost 30 years, right on WJ’s doorstep, at Imperial College in Central London.read more
Back in May WJ UK had the honour of being included in articles in the British National Press because of our work on the Thames Tideway project. This time we’ve gone one step better and can now claim to be ‘as featured on TV’!read more
WJ are once again showing our technical prowess with another challenging project in Anchorsholme; dewatering a cofferdam in the Irish Sea!
WJ have been working in and around Blackpool for several years now, having completed the Anchorsholme Park Storage Phase 1 and Phase 2 works for Ward and Burke and the Lennox Gate project for Ward and Burke and JN Bentley, both during 2016 and 2017.
Our latest project, working with the CH2M HILL – VolkerStevin joint venture, C2V+, was to aid the construction of a new 6m by 20m cofferdam in the Irish Sea, directly off the coast from the Anchorsholme Park Storage site. The particularly challenging aspect of this project was the offshore location of the cofferdam, fortunately WJ have undertaken several similar projects to this in recent years in Ipswich and Dover.
The dewatering system comprised eight 9.5m deep deepwells installed around the internal perimeter of the cofferdam, installed using a rotary drilling rig, in to interbedded sand and clay deposits during February 2018.
The first technical challenge on this project was the installation of the wells themselves. It was only possible to install during the two 6-hr low tide windows each day, as during high tides the cofferdam would be flooded. During each of these windows it was necessary to pump out the cofferdam, crane the drilling rig in to position, drill, seal off the works so they wouldn’t flood when the tide came back in, and remove the rig from the cofferdam. Fortunately due to the meticulous planning of the works by the WJ Project Engineer, Michael Cummiskey, the wells were all successfully installed during the planned installation period.
The second technical challenge was also a result of the offshore location. As the cofferdam would be flooded during high tides it was necessary for the WJ control cabin and generators to be located onshore on an existing revetment, above the maximum tide level, with cables running between the cofferdam and the cabins along the beach and existing sea defences.
Despite the best efforts of the Irish Sea the target drawdown was successfully achieved and the pumping is due to continue until the end of April.read more
WJ Groundwater have a long and enviable reputation as technical leaders in the dewatering industry, renowned for being able to provide a professional and practical solution to groundwater problems. In order to reinforce this position, and to enhance our reputation as the ‘go to’ company for overpumping, WJ have invested in some new larger capacity pumps to add to our already extensive fleet.
The new pumps were purchased to aid with another high-profile sewage overpumping project at the Dubai Mall, the largest shopping mall in the world with over 1200 stores! The pumping setup included a mixture of WJ’s fuel efficient 16”, 12” and 6” diesel surface pumps, chosen to cope with both the project requirements and to minimise overall project costs to the client, HLG.
As is often the case in this industry, the biggest challenge WJ faced during the project was logistical. The site was located with an elevated bridge section on one side, and a live road on the other, with the requirement for several hundred metres of the overpumping system, including a 400mm diameter pipe, to be buried through a live construction site. With WJ’s characteristic careful planning, we were able to liaise with local authorities for road closures and the installation works proved to be a great success!
The system continues to perform extremely well even with the significant changes in flow between peak and low flow times of the day.
Dubai General Manager Oliver Vincent noted that the success of this project was a perfect example of why WJ have grown so quickly in this newly developing market:
“It was clear to us that the market wanted a reliable overpumping contractor that not only rented pumps, but also gave a complete service from design, to installation, to operation and maintenance. Yes, we do offer a rental only service, but often we find that clients don’t want to worry about sewage overflowing at night, so they would much rather give the complete package to WJ and rest easy. As we already had the design expertise, plus the backbone of supervisors, engineers and mechanics required to service the system, it was a natural progression for us. As you can imagine, it is very exciting for us as we get to work with some amazing pieces of equipment, with some very high flows and on some fantastic projects.”
Call WJ Groundwater today to find out how they can help you with your sewage and water control project. WJ are happy to provide advice at early design and prices at tendering stages.
WJ Groundwater have been celebrating once again following receipt of our ISO 9001:2015 Quality Management Systems certification, to add to our existing ISO 14001 and 18001 certificates.
The ISO 9001:2015 certification, awarded to WJ by Bureau Veritas, demonstrates the quality management systems and processes that have been put in place in our Dubai, Abu Dhabi and Qatar offices, and is a welcome reward for the hard work of all of our employees.
To celebrate this achievement, a BBQ was held in Dubai and attended by many of the WJ workforce and their families, including Managing Director Richard Fielden, who had flown over from WJ’s UK head office to join in the celebration. It was a highly enjoyable event, with music, drinks, and food, the highlight of which was definitely the Filipino-Style BBQ Chicken Abodo!
This certification keeps WJ’s Middle Eastern branches in line with the consistently high standards set by the Head Office in the UK.
Hopefully this is the first in many achievements for WJ in 2018!read more
Last week WJ took receipt of a new Soilmec SM14 drilling rig. A welcome addition to WJ’s already extensive fleet of drilling rigs both in the UK and across the world!
Soilmec are internationally renowned and respected suppliers of drilling rigs, who WJ have had a long partnership, and the SM14 is the latest addition to our fleet, a fleet which already contains several trusted and reliable Soilmec drilling rigs!
The SM14 is a compact and versatile tracked rotary drilling rig that allows WJ to continue to provide excellent efficiency and high quality service to all of our customers, allowing us to work in a wide variety of environments from tunnels, shafts and basements to wide open spaces. The rig is fitted with a variety of safety features, including a rig guard cage and radio remote control, to ensure the high levels of health and safety that WJ strive for on all projects can be maintained.
The rig is perfectly designed to work on a wide range of WJ projects, including wellpoint, deepwell and ejector well dewatering system installations, and will be out on site soon where it will be put through the paces by our team of experienced drillers.
For more details on the services WJ offer please visit our Services Page, or contact our head office on 020 8950 7256.read more
On Wednesday 6th December, WJ Groundwater’s Chairman, Dr Toby Roberts, was invited to present the keynote speech at the award ceremony for the illustrious Fleming Award, at the Institute of Civil Engineers in central London.
The Fleming Award, won by WJ in 2006 for their works on the Govan Tunnel project in Glasgow, is an annual award presented by the British Geotechnical Association to recognise excellence in the practical application of geotechnics as part of a larger project, with a strong emphasis on teamwork displayed by the various disciplines across the project team (For more information on the Fleming Award visit here). The 2017 award was presented to the PISA Project, comprising Oxford University, Imperial College London, DONG Energy, The Carbon Trust and SOCOTEC UK (For more information on the 2017 Award visit here). Dr Roberts was invited to present the prestigious keynote speech at the ceremony, taking place whilst the judges deliberated over who the award should be presented to. The speech, entitled ‘Groundwater control for excavations in Cork, Ireland’, covered a series of dewatering case studies from the extensive redevelopment of Cork over the past 20 years.
WJ have a long history of working and providing dewatering in Cork, having undertaken more than a dozen projects during this time period, including the recent Navigation Square and South Mall developments on the River Lee in the east of the city.
For more information of Dr Roberts’ talk please visit the British Geotechnical Association website here.read more
The Contam Expo, returning for its second year, is one of the biggest exhibitions of its kind in the UK covering sectors as broad ranging as Land Remediation, Spill Response, Clean Air Technology, Hazardous Materials, Nuclear Decom, and the Geotechnical Industry, with talks by industry leading experts and the opportunity to visit stands manned by the leading companies in each sector.
WJ Groundwater will be exhibiting on both days, and can be found on stand C3172. Designers, Engineers, Project Managers and Directors will be attending both days and will happy to explain all of the services we have on offer.